A water-based uv skin-feel coating and a method of making the same

Abstract

The application provides a water-based UV skin-feeling paint and a preparation method thereof. The water-based UV skin-feeling paint provided by the application comprises, in mass parts, the following raw materials: 60-80 parts of water-based UV skin-feeling resin; 0.3-0.5 parts of wetting agent; 0.5-1.0 parts of dispersing agent; 2-4 parts of photoinitiator IGM 500; 0.2-0.5 parts of defoaming agent; 3.0-6.0 parts of flatting powder; 0.3-1.0 parts of thickening agent PUR 44; and 5-20 parts of water; wherein the water-based UV skin-feeling resin is 5 official water-based UV aliphatic polycarbonate type polyurethane UV dispersion WR80059. The water-based UV skin-feeling paint provided by the application can be cured under conventional ultraviolet radiation and achieve excellent skin-feeling effect, and meanwhile, has excellent gloss, adhesion, resistance and scratch resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of paint, in particular to a water-based UV skin feel paint and a preparation method thereof. BACKGROUND

[0002] Skin feel, that is, all the feelings people get when the human body skin is in contact with the outside world, is mainly the comprehensive feeling of vision and touch, so the generation of skin feel is mainly the surface with special structure (three-dimensional texture, concave-convex) and surface friction, elasticity, flexibility, which makes people feel soft, full, warm, comfortable and other feelings when in contact with the skin. Skin feel furniture is named because the paint film has the touch of baby's skin. With the improvement of people's requirements for the performance of furniture, especially in the field of high-end furniture popular in recent years and the current simple and luxury style, the skin feel performance of furniture is more and more loved and valued by people.

[0003] There are three kinds of skin feel paint on the market at present, including oil-based PU skin feel paint, water-based skin feel paint and UV skin feel paint. Among them, PU skin feel paint needs to be sprayed after being diluted with a large amount of solvent during construction, and the solvent is discharged into the atmosphere environment during volatilization, which has a great impact on the environment, the VOC emission exceeds the standard, and the environment is polluted. Water-based skin feel paint is a two-component polyurethane, and the construction production has less impact on the environment, but the construction efficiency is low, the paint film needs a long reaction and crosslinking time, and the production cycle is long. UV skin feel paint has the highest construction efficiency, and has less impact on the environment, but it has special requirements for the light source for curing the paint film, and needs specific light source equipment for UV paint film curing. The conventional curing equipment cannot achieve the skin feel effect, so its application is limited, and the adhesion, resistance and other properties are also poor. SUMMARY

[0004] Therefore, the present application provides a water-based UV skin feel paint and a preparation method thereof. The water-based UV skin feel paint provided by the present application can improve the curing performance, achieve the skin feel effect under conventional curing equipment, and has excellent adhesion, resistance and scratch resistance.

[0005] The present application provides a water-based UV skin feel paint, and the preparation raw materials thereof include, by mass fraction:

[0006]

[0007]

[0008] Among them,

[0009] The water-based UV skin feel resin is 5 official water-based UV aliphatic polycarbonate type polyurethane UV dispersion WR80059.

[0010] Preferably, the amount of each component in the preparation raw materials is:

[0011]

[0012] Preferably, the dispersant is BYK 190.

[0013] Preferably, the flatting powder is E-1011.

[0014] Preferably, the wetting agent is Digo 270.

[0015] Preferably, the defoaming agent is BYK 024.

[0016] The present application also provides a preparation method of the water-based UV skin-feeling paint described in the technical solutions above, comprising the following steps:

[0017] A) mixing water, a defoaming agent, a dispersant, a flatting powder, a wetting agent and a photoinitiator to obtain a slurry;

[0018] B) mixing the water-based UV skin-feeling resin with the slurry and a thickening agent to obtain the water-based UV skin-feeling paint.

[0019] Preferably, in step A), the mixing is stirring mixing; the stirring mixing is performed at a speed of 500-1500 r / min for 20-35 min.

[0020] In step B), the mixing is stirring mixing; the stirring mixing is performed at a speed of 500-600 r / min for 10-15 min.

[0021] Preferably, step A) specifically comprises:

[0022] mixing water, a defoaming agent and a dispersant, then adding a flatting powder for mixing, and finally adding a wetting agent and a photoinitiator for mixing to obtain the slurry.

[0023] Preferably, the mixing of water, a defoaming agent and a dispersant is performed at a speed of 1000-1500 r / min for 5-10 min.

[0024] The mixing of adding a flatting powder is performed at a speed of 1000-1500 r / min for 10-15 min.

[0025] The mixing of adding a wetting agent and a photoinitiator is performed at a speed of 500-600 r / min for 5-10 min.

[0026] The application provides a water-based UV skin-feeling paint, which is prepared by mixing certain water-based UV skin-feeling resin, wetting agent, dispersing agent, photoinitiator IGM 500, defoaming agent, flatting powder, thickening agent PUR 44 and water in a certain proportion. On the one hand, water is used as a diluent instead of solvent dilution, which has little impact on the environment; on the other hand, the construction efficiency is high; on the other hand, the original high-pressure mercury lamp curing equipment can be directly used for ultraviolet curing without modification of the current mechanical equipment, which can meet the curing requirements and achieve the skin-feeling effect, reduce the capital cost investment; on the other hand, the formed coating has excellent performance, and excellent adhesion, resistance and scratch resistance.

[0027] The experimental results show that the water-based UV skin-feeling paint provided by the application can be cured under conventional ultraviolet radiation and achieve excellent skin-feeling effect, and has excellent gloss, adhesion, resistance and scratch resistance. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] In this document, the technical features described in an open way include both the closed technical solution consisting of the listed features and the open technical solution containing the listed features.

[0030] In this document, when referring to a numerical interval, the numerical interval is considered to be continuous and includes the minimum value and the maximum value of the range and each value between the minimum value and the maximum value, unless otherwise specified. Further, when the range is an integer, each integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all sub-ranges subsumed therein.

[0031] In this document, when referring to a data range, if only the unit is indicated after the right end point, it means that the units of the left end point and the right end point are the same. For example, 1000-1500 r / min means that the units of the left end point "1000" and the right end point "1500" are both r / min.

[0032] Only some numerical ranges are specifically disclosed herein. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with any other lower limit to form a range not explicitly recited, as can any upper limit with any other upper limit to form a range not explicitly recited. Further, each individual disclosed point or single numerical value can itself serve as a lower limit or upper limit to combine with any other point or single numerical value or with other lower limits or upper limits to form a range not explicitly recited.

[0033] The present application provides a water-based UV skin-feel coating, which is prepared from raw materials including, in parts by mass:

[0034]

[0035] wherein,

[0036] The water-based UV skin-feel resin is a 5-guan water-based UV aliphatic polycarbonate type polyurethane UV dispersion WR80059.

[0037] [About the water-based UV skin-feel resin]:

[0038] In the present application, the water-based UV skin-feel resin is a 5-guan water-based UV aliphatic polycarbonate type polyurethane, specifically UV dispersion WR80059, which can be provided by Guangdong Haohui New Materials Co., Ltd. The above water-based UV skin-feel resin is the main film-forming material, which is a polyurethane, has good compatibility with other components, and can provide elastic and skin-like effects when combined with other components, and is beneficial to improve adhesion, wear resistance, toughness, and easy to matt.

[0039] In the present application, the amount of the water-based UV skin-feel resin is 60-80 parts, specifically 60 parts, 61 parts, 62 parts, 63 parts, 64 parts, 65 parts, 66 parts, 67 parts, 68 parts, 69 parts, 70 parts, 71 parts, 72 parts, 73 parts, 74 parts, 75 parts, 76 parts, 77 parts, 78 parts, 79 parts, 80 parts, and more preferably 70-80 parts.

[0040] [About the wetting agent]:

[0041] In the present application, the wetting agent is preferably TEGO 270, which is a polyether siloxane copolymer. In the present application, the amount of the wetting agent is 0.3-0.5 parts, specifically 0.3 parts, 0.4 parts, 0.5 parts, and more preferably 0.3 parts.

[0042] [About the dispersant]:

[0043] In the application, the dispersant is preferably BYK 190, which is a high molecular weight block copolymer solution containing pigment affinity groups, with a solid content of 40%, and is a wetting and dispersing aid for water-based coatings and water-based pigment concentrate paste. The application uses the above-mentioned dispersant to better match with other components of the application, so that each component can achieve the best dispersion and compatibility state, help the components to fully play their role, and improve the skin feel, adhesion, wear resistance and other properties of the product.

[0044] In the application, the amount of the dispersant is 0.5-1.0 parts, specifically 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1.0 parts, and more preferably 0.6 parts.

[0045] [About the photoinitiator IGM 500]:

[0046] In the application, the photoinitiator IGM 500 is a liquid mixture of two photoinitiators (benzophenone + 1-hydroxycyclohexyl-phenyl ketone), which can initiate the UV polymerization reaction of the unsaturated prepolymer system. Compared with other photoinitiators, the above-mentioned specific photoinitiator has better matching with the system of the application, and can better initiate the UV polymerization reaction of the system and help improve the performance of the product.

[0047] In the application, the amount of the photoinitiator IGM 500 is 2-4 parts, specifically 2.0 parts, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, 2.9 parts, 3.0 parts, 3.1 parts, 3.2 parts, 3.3 parts, 3.4 parts, 3.5 parts, 3.6 parts, 3.7 parts, 3.8 parts, 3.9 parts, 4.0 parts.

[0048] [About the defoaming agent]:

[0049] In the application, the defoaming agent is preferably BYK 024, which is a mixture of bubble-breaking polysiloxane and hydrophobic particles in polyethylene glycol. In the application, the amount of the defoaming agent is 0.2-0.5 parts, specifically 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, and more preferably 0.2 parts.

[0050] [About the matting powder]:

[0051] In the application, the matting powder is preferably E-1011, which is from Japan's Toagosei Co., Ltd. The introduction of the above-mentioned matting powder in the application can assist and reduce the gloss of the coating film, and improve its skin feel effect. In the application, the amount of the matting powder is 3.0-6.0 parts, specifically 3.0 parts, 4.0 parts, 5.0 parts, 6.0 parts, and more preferably 4.0 parts.

[0052] [About the thickening agent PUR 44]:

[0053] In the present application, the thickening agent PUR 44 is an associative thickening agent from Mingling, Germany. The introduction of the above-mentioned thickening agent in the component system of the present application can improve the viscosity of the paint and keep the paint in a uniform and stable suspension or emulsion state, thereby helping to improve the use effect of the paint.

[0054] In the present application, the amount of the thickening agent PUR 44 is 0.3-1.0 parts, specifically 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1.0 parts, and more preferably 0.4 parts.

[0055] [About water]:

[0056] In the present application, the water is preferably deionized water. In the present application, the amount of water is 5-20 parts, specifically 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, and more preferably 5-15 parts, and most preferably 13 parts.

[0057] The present application also provides a preparation method of the water-based UV skin-feeling paint described in the above technical solution, comprising the following steps:

[0058] A) mixing water, defoaming agent, dispersing agent, flatting powder, wetting agent and photoinitiator to obtain a slurry;

[0059] B) mixing the water-based UV skin-feeling resin with the slurry and thickening agent to obtain the water-based UV skin-feeling paint.

[0060] [About step A]:

[0061] In the present application, the mixing is preferably stirring mixing. The stirring mixing speed is preferably 500-1500 r / min, and the stirring mixing time is preferably 20-35 min.

[0062] In the present application, the step A) preferably specifically comprises: mixing water, defoaming agent and dispersant, then adding matting powder for mixing, and finally adding wetting agent and photoinitiator for mixing to obtain slurry. The mixing conditions of water, defoaming agent and dispersant are preferably: rotation speed 1000-1500 r / min, stirring time 5-10 min; wherein the rotation speed can be specifically 1000 r / min, 1100 r / min, 1200 r / min, 1300 r / min, 1400 r / min, 1500 r / min, and more preferably 1300 r / min; the stirring time can be specifically 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, and more preferably 10 min. The mixing conditions of adding matting powder for mixing are preferably: rotation speed 1000-1500 r / min, stirring time 10-15 min; wherein the rotation speed can be specifically 1000 r / min, 1100 r / min, 1200 r / min, 1300 r / min, 1400 r / min, 1500 r / min, and more preferably 1300 r / min; the stirring time can be specifically 10 min, 11 min, 12 min, 13 min, 14 min, 15 min, and more preferably 15 min. The mixing conditions of adding wetting agent and photoinitiator for mixing are preferably: rotation speed 500-600 r / min, stirring time 5-10 min; wherein the rotation speed can be specifically 500 r / min, 550 r / min, 600 r / min, and more preferably 500 r / min; the stirring time can be specifically 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, and more preferably 10 min. After the above mixing operation, the slurry is obtained.

[0063] [About step B]:

[0064] In the present application, the mixing method is preferably stirring mixing. The stirring mixing conditions are preferably rotation speed 500-600 r / min, stirring time 10-15 min.

[0065] In the present application, after the above mixing, filtration is preferably further carried out. In the present application, the mesh number of the filter screen used for filtration is preferably 200 meshes. After the above treatment, the water-based UV skin feel paint is obtained.

[0066] The present application also provides a construction method of water-based UV skin feel paint, comprising the following steps: coating the paint on a substrate, drying, and then performing ultraviolet radiation curing to form a UV coating; wherein the paint is the water-based UV skin feel paint in the above technical solution.

[0067] In the present application, the substrate is preferably a wooden substrate, for example, painting the surface of furniture.

[0068] In the present application, the coating method for applying the paint on the substrate is preferably spraying, and in particular, reciprocating automatic spraying machine can be used for spraying. In the present application, the application viscosity (25 DEG C) of the paint is preferably 70-80 s (4 cups of coating). In the present application, the coating film amount during coating is preferably 100-150 g / m 2 .

[0069] In the present application, the drying can use infrared hot air equipment. The temperature of the drying is preferably 40-50 DEG C, and in particular, 40 DEG C, 45 DEG C, 50 DEG C, and more preferably 50 DEG C. The time of the drying is preferably 20-30 min, and in particular, 20 min, 25 min, 30 min, and more preferably 30 min.

[0070] In the present application, the lamp type used for the ultraviolet light radiation curing is preferably high-pressure mercury lamp. The output power of the lamp used for the ultraviolet light radiation curing is preferably >= 12 KW. The energy of the lamp used for the ultraviolet light radiation curing is preferably 400-800 mJ / cm 2 .

[0071] The present application provides a kind of water-based UV skin feel paint, by certain water-based UV skin feel resin, wetting agent, dispersing agent, photoinitiator IGM 500, defoaming agent, flatting powder, thickening agent PUR 44 and water with certain proportion Collateral preparation. On the one hand, it uses water as diluent, instead of using solvent dilution, and the influence on environment is small;On the other hand, its construction efficiency is high;Again, it does not need to transform the current mechanical equipment, directly uses original high-pressure mercury lamp curing equipment to carry out ultraviolet curing, can meet the curing demand and reach skin feel effect, reduce capital cost investment;Again, the performance of the coating formed is superior, and excellent adhesion, resistance and scratch resistance are shown.

[0072] The water-based UV skin feel paint provided by the present application has incomparable advantages compared with traditional two-component polyurethane PU paint, water-based skin feel paint and UV skin feel paint. The two-component polyurethane PU skin feel paint contains solvent, and has slow drying, low efficiency and is not environmentally friendly. The water-based skin feel paint has long crosslinking time and low efficiency. The UV skin feel paint needs special wavelength light source curing equipment, and cannot achieve the effect using conventional high-pressure mercury lamp, which needs to invest a lot of funds to transform the equipment. The water-based UV skin feel paint of the present application overcomes the above three shortcomings, has no solvent volatilization, has small influence on environment, can be cured into film after 20-30 minutes of drying, has high construction efficiency, does not need to transform the existing curing equipment, and can be used with conventional curing light source. The water-based UV skin feel paint provided by the present application meets the production equipment conditions of most furniture factories at present, greatly improves the performance of the produced products, and further improves the added value of the products.

[0073] The experimental results show that the water-based UV skin-feeling coating can be cured under conventional ultraviolet radiation and has excellent skin-feeling effect, excellent gloss, adhesion, resistance and anti-scratch performance.

[0074] In order to further understand the present application, the preferred embodiments of the present application are described below in combination with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present application, and are not limitations on the claims of the present application.

[0075] In the following examples and comparative examples, the raw materials are commercially available unless otherwise specified. Among them, the UV dispersion WR80059 can be provided by Guangdong Haohui New Material Co., Ltd. The polyurethane dispersion CR92430 can be provided by Guangdong Haohui New Material Co., Ltd.

[0076] Examples 1-3

[0077] 1, Raw material formula of water-based UV skin-feeling coating:

[0078] The raw material collocations used in each example are shown in Table 1:

[0079] Table 1: Raw material collocations of each example (unit of dosage: mass parts)

[0080] Raw materials Example 1 Example 2 Example 3 Aqueous UV-feel resin WR80059 75 66 70 Deionized water 16 20.7 22.2 Dispersant BYK 190 0.5 0.5 0.5 Defoamer BYK 024 0.3 0.3 0.3 Wetting agent TEGO 270 0.3 0.3 0.3 Matting powder E-1011 4.0 5.0 3.0 Photoinitiator IGM 500 4.0 3.5 3.0 Thickener PUR 44 0.8 0.6 0.6

[0081] 2, Preparation of water-based UV skin-feeling coating

[0082] A) Add water into a container, place it in a dispersing machine, add defoaming agent and dispersant while stirring, then stir at a speed of 1300 r / min for 10 min, then add matting powder, continue to stir at the same speed for 10 min, then add wetting agent and photoinitiator, stir at a speed of 600 r / min for 10 min, to obtain a slurry.

[0083] B) Put the water-based UV skin-feeling resin into another container, slowly add the slurry obtained in step A) under low-speed stirring at 600 r / min, then add thickening agent, continue to stir for 10 min, finally, filter with a 200 mesh filter screen to obtain the water-based UV skin-feeling coating.

[0084] Comparative Example 1

[0085] According to Example 1, except that the water-based UV skin-feeling resin UV dispersion WR80059 is replaced by another polyurethane dispersion CR92430.

[0086] Comparative Example 2

[0087] According to Example 1, except that the photoinitiator IGM 500 is replaced by the photoinitiator TPO.

[0088] Comparative Example 3

[0089] Example 1 was implemented, except that thickening agent PUR 44 was replaced by thickening agent RM-8W.

[0090] Comparative Example 4

[0091] Example 1 was implemented, except that dispersing agent BYK 190 was replaced by dispersing agent SN 5040.

[0092] Product testing

[0093] The paint obtained in each example and comparative example was respectively sprayed on a wooden substrate, with a coating amount of 100 g / m 2 . Then, it was dried at 45°C for 25 min. Subsequently, it was subjected to ultraviolet light radiation curing, using a high-pressure mercury lamp with a power of 12 KW and an energy of 500-600 mJ / cm 2 . Thus, a coating was formed.

[0094] The coating was subjected to various performance tests, and the results are shown in Table 2.

[0095] Among them:

[0096] The test of adhesion (cross-hatch method) refers to the standard GB / T 9286-1998, and the higher the grade, the better the adhesion.

[0097] The surface hardness (Chinese pencil) grade is H1-H6 (the larger the number, the stronger the hardness), HB, B1-B6 (the larger the number, the greater the softness), H1-H6> HB> B1-B6.

[0098] The test of gloss (60-degree gloss) was measured using a SHEEN brightness meter, and the normal brightness should be between 2 and +5 of the product set brightness, the larger the number, the higher the gloss.

[0099] The 24h water resistance performance test: the dishes washed with room temperature tap water (20±5)℃ were placed on the test color plate with a small amount of water on the surface, with a weight of 500 grams on the dishes, and placed in an environment of (20±2)℃ for 24 hours. After taking away the dishes, the paint film surface was cleaned with a clean cloth, and no discoloration, white marks and other adverse phenomena should be observed on the paint film surface. It was divided into 5 grades, grade 1 had no change, and grade 5 had obvious abnormalities.

[0100] The moisture resistance test: it was determined and graded according to the provisions of GB / T48933-2005, and was divided into 5 grades, and the test result should not be lower than grade 3, grade 1 had no whitening and blistering on the paint film surface, and grade 5 had obvious whitening and blistering problems.

[0101] ​Scratch resistance test: The test was determined and graded according to the provisions of ISO12137-1:1997, and was divided into 5 grades, grade 1 without trace, and grade 5 with trace of paint film damage.

[0102] Skin feel test: The back of the hand was gently contacted and moved back and forth on the paint film to feel the skin feel effect of the paint film. The skin feel effect was judged, and was divided into 5 grades, grade 1 for the best elastic skin feel, and grade 5 for the worst elastic skin feel.

[0103] Table 2: Performance test results

[0104] Adhesion Hardness Gloss Feeling effect Water resistance 24 h performance Moisture resistance Scratch resistance Example 1 5B 1H 3.0 1st 1st 1st 1st Example 2 5B 1H 2.3 1st 1st 1st 1st Example 3 5B 1H 4.2 1st 1st 1st 1st Comparative Example 1 5B 1H 30 5th 1st 1st 2nd Comparative Example 2 2B HB 30 3rd 4th 4th 4th Comparative Example 3 5B HB 7 2nd 1st 1st 2nd Comparative Example 4 5B 1H 9 2nd 1st 1st 2nd

[0105] It can be seen that the adhesion of the samples of the embodiments 1-3 of the present application reaches 5B, the gloss is normal brightness, the skin feel effect is excellent, and the water resistance, moisture resistance and scratch resistance are excellent. Compared with the embodiments, the gloss of the comparative example 1 is abnormal, the skin feel effect is poor, and the scratch resistance is poor, which proves that the specific waterborne UV skin feel resin used in the present application is beneficial to improving the product performance compared with other polyurethanes. Compared with the embodiments, the adhesion of the comparative example 2 is poor, the gloss is abnormal, the skin feel effect and the water resistance, moisture resistance and scratch resistance are poor, which proves that the use of a certain photoinitiator to initiate the system reaction is beneficial to improving the comprehensive performance of the product. Compared with the embodiments, the gloss of the comparative example 3 is abnormal, the skin feel effect and the scratch resistance are poor, which proves that the use of a certain thickening agent can better cooperate with the components of the system, and improve the product performance. Compared with the embodiments, the gloss of the comparative example 4 is abnormal, the skin feel effect and the scratch resistance are poor, which proves that the use of a certain dispersing agent can better disperse and match the components, fully play the role of each component, and improve the product performance.

[0106] The principles and implementations of the present application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method of the present application and its core idea, including the best mode, and also enables any person skilled in the art to practice the present application, including manufacturing and using any device or system, and implementing any combined method. It should be noted that those skilled in the art can make some improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application. The scope of patent protection of the present application is defined by the claims, and can include other embodiments that can be thought of by those skilled in the art. If these other embodiments have structural elements similar to the language expressions of the claims, or if they include equivalent structural elements that are not substantially different from the language expressions of the claims, then these other embodiments should also be included in the scope of the claims.

Claims

1. An aqueous UV skin-feel coating, characterized in that, The preparation raw materials include, in parts by mass: Waterborne UV skin-feel resin 60~80 parts; Wetting agent 0.3~0.5 parts; Dispersant 0.5~1.0 parts; Photoinitiator IGM 500 2~4 parts; Defoaming agent 0.2~0.5 parts; Matting powder 3.0~6.0 parts; Thickener PUR 44 0.3~1.0 parts; Water 5~20 parts; Among them, The waterborne UV skin-feel resin is waterborne UV aliphatic polycarbonate type polyurethane UV dispersion WR80059; The dispersant is BYK 190.

2. The aqueous UV skin coating of claim 1, wherein, The use amount of each component in the preparation raw materials is: Waterborne UV skin-feel resin 70~80 parts; Wetting agent 0.3~0.5 parts; Dispersant 0.5~1.0 parts; Photoinitiator IGM 500 2~3 parts; Defoaming agent 0.2~0.5 parts; Matting powder 3.0~6.0 parts; Thickener PUR 44 0.3~1.0 parts; Water 15~20 parts.

3. The aqueous UV skin coating of claim 1, wherein, The matting powder is E-1011.

4. The aqueous UV skin coating of claim 1, wherein, The wetting agent is Digo 270.

5. The aqueous UV skin coating of claim 1, wherein, The defoaming agent is BYK 024.

6. A process for the preparation of the aqueous UV skin coating according to any one of claims 1 to 5, characterized in that The steps include: A) mixing water, defoaming agent, dispersant, matting powder, wetting agent and photoinitiator to obtain a slurry; B) mixing waterborne UV skin-feel resin with the slurry, thickener to obtain waterborne UV skin-feel coating.

7. The preparation method according to claim 6, characterized in that, In step A), the mixing is stirring mixing; the stirring mixing conditions are: rotation speed 500~1500 r / min, stirring time 20~35 min; In step B), the mixing is stirring mixing; the stirring mixing conditions are: rotation speed 500~600 r / min, stirring time 10~15 min.

8. The preparation method according to claim 6, characterized in that, Step A) specifically includes: Mixing water, defoaming agent and dispersant, then adding matting powder for mixing, finally adding wetting agent and photoinitiator for mixing to obtain a slurry.

9. The production method according to claim 8, characterized by, The mixing conditions of water, defoaming agent and dispersant are: rotation speed 1000~1500 r / min, stirring time 5~10 min; The mixing conditions of adding matting powder are: rotation speed 1000~1500 r / min, stirring time 10~15 min; The mixing conditions of adding wetting agent and photoinitiator are: rotation speed 500~600 r / min, stirring time 5~10 min.

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